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Finding the Fourth Proportional to 236,556.80, 354,891.92 and 78,786.64

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Solution

The fourth proportional to 236,556.80, 354,891.92 and 78,786.64 is: 118,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,556.80 : 354,891.92 = 78,786.64 : x
  2. Step 2: Convert to fraction form
    236,556.80/354,891.92 = 78,786.64/x
  3. Step 3: Cross multiply
    236,556.80x = 354,891.92 × 78,786.64
  4. Step 4: Simplify right side
    236,556.80x = 27,960,741,939.95
  5. Step 5: Solve for x
    x = 27,960,741,939.95/236,556.80
  6. Step 6: Final answer
    x = 118,198.85

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